Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Changed the location of a local folder in Firefox and now I can't find it. Where did it go?

  • 1 reply
  • 1 has this problem
  • 4 views
  • Last reply by touchnova

more options

So I had a local folder that contained all my archived emails for almost 20 years in a whole bunch of subfolders. I recently got a new system and the local file copied over OK and I was using it. But I rearranged my storage a bit and wanted to move it. In the Account Settings for that local folder there is a field for "Local Directory", so I foolishly changed it to the new location, assuming the existing file would be moved there. But instead Thunderbird just made a new empty file there. Unfortunately I had completely forgotten the old location. I am assuming (fingers crossed) that the old file is around somewhere and I just need to find it. But I don't know what file or files to search for. Is a local folder in .mbox format? Or does it have one of those bizarre Thunderbird filenames like eiyurwgfoyueg.default? And once I do find it, how do I get it back into Thunderbird? I recall there used to be an option to simply open a mail file as a folder but I don't see that option anymore. Any help would be greatly appreciated.

So I had a local folder that contained all my archived emails for almost 20 years in a whole bunch of subfolders. I recently got a new system and the local file copied over OK and I was using it. But I rearranged my storage a bit and wanted to move it. In the Account Settings for that local folder there is a field for "Local Directory", so I foolishly changed it to the new location, assuming the existing file would be moved there. But instead Thunderbird just made a new empty file there. Unfortunately I had completely forgotten the old location. I am assuming (fingers crossed) that the old file is around somewhere and I just need to find it. But I don't know what file or files to search for. Is a local folder in .mbox format? Or does it have one of those bizarre Thunderbird filenames like eiyurwgfoyueg.default? And once I do find it, how do I get it back into Thunderbird? I recall there used to be an option to simply open a mail file as a folder but I don't see that option anymore. Any help would be greatly appreciated.

All Replies (1)

more options

Your missing mail/folders would be located within the previously associated profile. The default location is typically something like this:

C:\Users\YOUR-USER-NAME\AppData\Roaming\Thunderbird\Profiles\YOUR-PROFILE-NAME.default\Mail\Local Folders

By locating that directory and copying the proper path back into the 'Local Directory' path you changed in Account Settings, you should be good to go.